MAHMOUD .O.FANOUSH; DR.IDRIS.ATEA; ABDELMOLA MOHAMED. A survey of half-groups. مجلة البيان العلمية, [S. l.], n. 11, p. 203–200, 2023. Disponível em: https://journal.su.edu.ly/index.php/bayan/article/view/2254. Acesso em: 9 2025.